RICHEDIT once again

[Krzysztof Foltman]

Mike McCormack wrote:

> but I think the way forward is to submit an implementation of 
> dlls/riched20 then make that work, and after it's debugged and worked
>  out, rip out the old dlls/riched32 code and forward it to the new 
> completed riched20 code.

I'd prefer to keep it as an app, not a DLL for a while. It just makes
testing easier.

> You've writen the code to deal with unicode as default, which is
> good, but you need to deal with both ASCII and unicode messages in
> the window procedure.

Sure. And I guess it should be done before making a DLL out of it.

> It might be better to use libwineunicode and kernel32 unicode string
>  manipulation functions rather than msvcrt ones. eg lstrlenW,
> lstrcpyW, etc. instead of wcslen, wcscpy, etc. Avoid the TCHAR type
> in Wine code.

Good point. I guess it would be nice to replace malloc/free with
LocalAlloc/LocalFree, right ?

> Similarly, you'll need to use "winbase.h" and friends instead of 
> "windows.h".

Good idea. Done.

> From what I can see in the old riched32 code, the rtf parser looks 
> quite good, so don't try rewrite that

I'm all for reusing existing Wine code.

> haven't).  We can merge the parser into the riched20 code quite 
> easily... it's just  enters the text into the existing control using
>  EM_SETSEL and some formatting messages.

LOL :) That's a smart idea :) I'm curious about interactions with undo,
but we have no undo anyway (yet).

> I have a test I can send to you if you wish.

You mean, another container application ? That would be cool, my
container is getting better but it's still not very good.

> Again, my preference is to get this into the Wine CVS sooner rather
> than later, so others can start helping improve it.

I'll see what can be done. As soon as there is a minimal text 
manipulation API (based on RichEdit API, not on function calls), I can 
separate the control into a DLL and move the app code in the test directory.

So far, the next version is available at:

     http://foltman.com/richtext-20050130b.tar.gz

Main changes are:

- editor.c contains a list of which messages/notifications/styles work 
and which don't
- incomplete read-only mode
- replacement of MSVCRT wcs functions with Win32 lstr
- a modification flag
- a shy attempt at starting undo
- a #define to choose between my editor and the original RICHEDIT. It's 
not what I want it to be, but it's better than nothing.